use std::io;
use rand::Rng;
use std::cmp::Ordering;

fn main() {
    println!("Guess the number!");
    let secret_number = rand::thread_rng().gen_range(1, 101);
    loop {
        println!("secret_number is {}", secret_number);
        println!("Please enter your guess.");
        let mut guess = String::new();
        io::stdin().read_line(&mut guess)
            .expect("Failed to read line");
       let guess: u32 = match guess.trim().parse() {
            Ok(num) => num,
            Err(_) => continue,
       };
        //   .expect("Please type a number!");
        println!("You guessed: {}", guess);
        match guess.cmp(&secret_number) {
            Ordering::Less => println!("Too small"),
            Ordering::Greater => println!("Too big"),
            Ordering::Equal  => {
                println!("You win");
                break;
            }
        }
    }

}
